One of the most innovative new spaces on Quantum of the Seas will be SeaPlex, a state-of-the-art indoor sports zone that will be used for everything from basketball to bumper cars. Gene Sloan, USA TODAY

One of the most groundbreaking features on Quantum of the Seas will be 373 inside cabins with electronic "virtual balconies" that offer real-time views of the scene outside the ship. Gene Sloan, USA TODAY

Also new on Quantum of the Seas is Two70, an unusual, multilevel entertainment space with floor-to-ceiling windows that features live aerial performances as well as digital performances projected on moving screens. Gene Sloan, USA TODAY